diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2014-01-16 14:54:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-01-16 15:14:32 +0100 |
| commit | 63b1a81699c2a45c9f737419b1ec1da0ecf92812 (patch) | |
| tree | 10ff7584b7ccb999553e834f9f07b1bd8b84b5e2 /arch/x86/vdso/vclock_gettime.c | |
| parent | f549ed1abc7e4f0292ce08c4143c64a610c8b2cb (diff) | |
futexes: Fix futex_hashsize initialization
"futexes: Increase hash table size for better performance"
introduces a new alloc_large_system_hash() call.
alloc_large_system_hash() however may allocate less memory than
requested, e.g. limited by MAX_ORDER.
Hence pass a pointer to alloc_large_system_hash() which will
contain the hash shift when the function returns. Afterwards
correctly set futex_hashsize.
Fixes a crash on s390 where the requested allocation size was
4MB but only 1MB was allocated.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Waiman Long <Waiman.Long@hp.com>
Cc: Jason Low <jason.low2@hp.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Link: http://lkml.kernel.org/r/20140116135450.GA4345@osiris
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/vdso/vclock_gettime.c')
0 files changed, 0 insertions, 0 deletions